Pitman-Rod Connection



(No Model.)

G. E. WAGGON'ER.

PITMAN ROD CONNECTION. No. 292,077. N Patented Jan. 15, 1884.

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SPECIFICATION formingpart of Letters Patent No. 292,077, dated January 15, 1884.

Application filed November 15, 1883. (No modeL) To all whom it may concern.-

Be it known that I, GEORGE E. WAGGONER, of New Hampton, county of Harrison, Missouri, have invented a new and Improved Pitman-Rod Connection, of which the following is a full, clear, and exact description.

My invention consists of an improved connection for the pitman of aharvester or mower with the sicklebar, as follows: The solid eye of the pitman or connecting rod is fitted on a thimble that is connected with the jaws of the sickle-bar head by a screw-bolt and janrnut, and is provided with means for preventing said thimble from turning, and a presser-box is arranged behind the eye of the pitman and in the jaws of the head, with a set-screw and j ainnut to take up the slack from time to time, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of my improved pitrnanrod connection. Fig. 2 is a longitudinal sectional elevation of the same on line 00 x of Fig. 1, and Fig. 3 is a transverse section on line y y of Fig. 2.

I propose to make the jaw-head a of the sickle-bar b in any suitable form, as may be required for the different arrangements of different machines, but so that a set-screw, 0, may be fitted through the head in suitable relations with the jaws d to press a bearing or box, 0, against the solid eye f of the pitmanrod 9 and press it against the connecting-bolt h, to take up the slack and prevent rattling. For the connecting-bolt h, 1 use a screw-bolt screwing through the jaws d and also through a thimble, t, for the eye f to bear on, the screwbolt being to afford more bearing-surface of the thimble on the bolt for greater durability, and to enable the jam-nut 0 to be used for securing the bolt without springing the jaws d,- and, to prevent the thimble from turning while screwing the bolt in, I provide the end of the thimble with ribs and the jaws with grooves Z, in which said ribs bear, so that the thimble cannot turn; but, if preferred, the thimble may have a hole, m, coincident with the oil-hole a of the eye f, in which a wire may be inserted while adjusting the screw. The thimble will not turn after being screwed up tight by the bolt. The janrnut 0, which is screwed onto the bolt h after said bolt is screwed up tight, to prevent it from working slack, will bind hard against the jaw to secure the bolt without springing the two jaws, as it would if the bolt did not screw through them.

It will be seen that the resser-box 6, located between the jaws d behind the eye f, and pressed up against it by the set-screw 0, will take up any slack that may wear in the eye and prevent the pitman fromrattling. The screw 0 has a jam-nut, p, to prevent it from working slack.

My improved pitman-rod connection is also applicable to other devices besides sicklebarsas the connecting -rods of steam-enginesand I propose to use it in any such other service to which it may be applicable.

The bolt k may, if preferred, be fitted to screw into the jaws only, being plain through the thimble, but having the jam-nut o. The part of the bolt next to the head, and screw ing into the jaw, will in this case have to be larger than the rest of the bolt. The thimble may be omitted in this arrangement.

The presser-block may be of wood or any other approved material.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a pitman-rod connection, the-thimble 2', for the solid eye f of the pitman, secured between the jaws of the head by a screw-bolt, h, and having means to prevent it from turning when the bolt is screwed in and out, substantially as described.

2. In a pitman-rod connection, the thimble i, for the solid eye f of the pitman, secured between the jaws a of the head by a screw-bolt, h, and j am-nut 0, said thimble having ribs k, and the jaws (I having grooves Z, to prevent the thimble from turning when the bolt is screwed in and out, substantially as described.

3. The combination of the presser-bearing c, adjusting-screw c, and jam-nut with the solid eye f of the connecting-rod g, and the bolt h and thimble i, by which said rod is connected to the jaws of the sickle-bar head, sub stantially as described.

GEORGE E. WAGGONER. Witnesses:

J. A. BROWNING, A. X. HENsHAW. 

